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Workshop Modeling and Simulation of Cyber-Physical Energy Systems (MSCPES)

作者： Bernhard Heinzl Wolfgang Kastner Ines Leobner Fabian Dür Friedrich Bleicher Iva Kovacic Institute of Computer Aided Automation Vienna University of Technology Vienna Austria Institute for Energy Systems and Thermodynamics Vienna University of Technology Vienna Austria Institute for Production Engineering and Laser Technology Vienna University of Technology Vienna Austria Institute of Interdisciplinary Construction Process Management Vienna University of Technology Vienna Austria

To meet the increasing requirements of sustainable production and to assure economic competitiveness, novel strategic approaches are necessary in designing production systems and to increase energy efficiency in the manufacturing industry. Individual areas within production facilities (e.g. production system, energy system, building hull) can be analyzed individually by using simulation-based methods. In order to access additional optimization potential, it is necessary to expand the boundaries of such simulations and to consider dynamic interactions between individual optimization fields. This work presents an approach for an interdisciplinary co-simulation, in which, for an overall integrated simulation, several simulation environments are coupled that periodically exchange data quasi-parallel at runtime. This allows not only to combine different model descriptions, but also multiple calculation algorithms, each specifically tailored to the individual needs of the respective field of engineering. A case study of a metal-cutting production facility presents an application example. The goal is to provide a decision-support tool for the early planning stages of production facilities that allows making qualified predictions about the effect and financial impact of different energy saving measures.

关键词： Mathematical model Numerical models Object oriented modeling Buildings Data models Production Resistance heating

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Characteristics of TiO2 metal-semiconductor-metal photodetectors with O2 plasma treatment

Characteristics of TiO2 metal-semiconductor-metal photodetec...

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International Conference on Information Science, Electronics and Electrical engineering (ISEEE)

作者： L. W. Ji I. T. Tang S. J. Young T. H. Meen J. K. Tsai T. C. Wu S. J. Chang Y. P. Luo K. C. Lee J. C. Lin B. Y. Lee Institute of Electro-Optical and Materials Science National Formosa University Taiwan Department of Greenergy National University of Tainan Tainan Taiwan Department of Electronic Engineering National Formosa University Taiwan Department of Electrical Engineering National Cheng Kung University Tainan Taiwan Department of Automation Engineering National Formosa University Taiwan Department of Mechanical Design Engineering National Formosa University Taiwan Department of Mechanical and Computer-Aided Engineering National Formosa University Taiwan

In this study, titanium dioxide (TiO 2 ) films were prepared on Corning glass substrates by radio frequency (RF) magnetron sputtering and treated without and with O 2 plasma conditions, and then were used to fabricate metal-semiconductor-metal (MSM) ultraviolet (UV) photodetectors (PDs). The effects of the changes on TiO 2 films were investigated by using field-emission scanning electron microscope (FE-SEM), photoluminescence (PL) system and four-point probe measurement. With a 360-nm illumination and 5 V applied bias, it was found that the responsivities of the fabricated TiO 2 PDs without and with 2 minutes O 2 plasma treatment were 36 and 153 A/W, respectively.

关键词： Plasmas Surface treatment Films Educational institutions Charge carrier processes Surface morphology Plasma measurements

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Measuring path without tool center point function for B-type five-axis machine tool

Measuring path without tool center point function for B-type...

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2nd International Conference on engineering and Technology Innovation 2012, ICETI 2012

作者： She, Chen-Hua Jywe, Wen-Yuh Huang, Jheng-Jie Department of Mechanical and Computer Aided Engineering National Formosa University Taiwan Department of Automation Engineering National Formosa University 64 Wen-Hua Road Huwei Yunlin 632 Taiwan

ISBN: (纸本)9783037856123

Five-axis machine tools with three linear axes and two rotary axes can produce complex products with free-form surfaces requiring a high degree of precision. However, motion errors of each axis and its assembly error are accumulated in the positioning error of the cutting tool relative to a workpiece. There are many devices reported in the literature on the identification of kinematic errors based on the measurement of the motion error. According to the measurement paths in the ISO draft, ISO/CD 10791-6, the kinematic tests can be applicable to different configurations of five-axis machine tools. However, the advanced controller with tool center point (TCP) function is required while performing kinematic tests. This paper proposed the methodology of generating measurement path without TCP function for B-type five-axis machine tool. The developed module can transform the measuring path into an NC program used for lower hand controller. Verification using VERICUT? solid cutting simulation software demonstrated the veracity of the generated five-axis NC code. The proposed methodology is applicable in a wide range of five-axis machine tool configurations;however, further testing with actual measuring applications will be required for further verification. © (2013) Trans Tech Publications, Switzerland.

关键词： Kinematics

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Interdisciplinary Strategies for Simulation-Based Optimization of Energy Efficiency in Production Facilities

Interdisciplinary Strategies for Simulation-Based Optimizati...

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International Conference on computer Modeling and Simulation, UKSIM

作者： Bernhard Heinzl Matthias Rößler Niki Popper Ines Leobner Karl Ponweiser Wolfgang Kastner Fabian Dür Friedrich Bleicher Felix Breitenecker Dwh Simulation Services Vienna Austria Institute for Energy Systems and Thermodynamics Vienna University of Technology Vienna Austria Institute of Computer Aided Automation Vienna University of Technology Vienna Austria Institute for Production Engineering and Laser Technology Vienna University of Technology Vienna Austria Institute for Analysis and Scientific Computing Vienna University of Technology Vienna Austria

This paper presents an approach for interdisciplinary optimization of energy efficiency in production plants. Domain-specific areas of action are discussed as well as the integration into a dynamic co-simulation that helps predicting the impact and financial benefit of selected energy saving measures by comparing and quantifying different scenarios. This should help giving incentives and creating impulses for strategic investment decisions. In a comprehensive methodological approach, optimization potential of both the production process itself as well as the production infrastructure is combined. The technical implementation involves several simulation environments and a framework for synchronization and data exchange in terms of co-simulation. The paper concludes with a discussion of some exemplary simulation results.

关键词： Object oriented modeling Buildings Optimization Production facilities Computational modeling Heating

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Responsive Open Space: Sound and image in public spaces

Responsive Open Space: Sound and image in public spaces

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2012 18th International Conference on Virtual Systems and Multimedia: Virtual Systems in the Information Society, VSMM 2012

作者： Gau, Melanie Redi, Andrea Redi, Ivan Kampel, Martin Computer Vision Lab. Institute of Computer Aided Automation Vienna Austria ORTLOS Space Engineering Graz Austria ORTLOS Space Engineering London United Kingdom CogVis Software and Consulting GmbH Vienna Austria

ISBN: (纸本)9781467325653

Responsive Open Space (ROS) is a performative spatial environment integrating audio-visual composition responsive to the engagement of participants among themselves. In an interdisciplinary collaboration architects, artists, composers and computer vision specialists developed an environment where participants can enter, move around, and - through interaction with each other - experience different fragments of a spacesensitive soundscape and its visual representation (sonification). The space consists of a kinetic architectural construction of projections screen hanging over participants to allow free movement within the room. The screen surfaces and shapes are designed to effect participants' vision. Each screen is movable, reacting to the participants' movement, and aligned with the visual projections. The system uses a high-end tracking system in order to reliably track multiple participants. The closeness of the participants to one another determines the size of their projection-scope. When two individuals meet both their according projections and acoustic tracks are melted together and only one remains, when they part both are separated into their own visualized soundscape again. The technical background consists of four components: (1) The tracking system on an infrared basis in order to exclude distractions from the projections and detect only people in the open space, (2) The "information cloud" above: the visual surface, a combination of light-weight movable elements, serving as projection screens and allowing participants to move freely in the room, (3) the soundscape, generating acoustic "relational feedback" of the movements in the space, and lastly (4) the immersive environment, the visualization itself, i.e. the implementation and integration of all included components. © 2012 IEEE.

关键词： Projection screens

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Responsive Open Space: Sound and image in public spaces

Responsive Open Space: Sound and image in public spaces

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International Conference on Virtual Systems and MultiMedia

作者： Melanie Gau Andrea Redi Ivan Redi Martin Kampel Computer Vision Laboratory Institute of Computer Aided Automation Vienna Austria ORTLOS Space Engineering Graz Austria CogVis Software and Consulting GmbH Vienna Austria

Responsive Open Space (ROS) is a performative spatial environment integrating audio-visual composition responsive to the engagement of participants among themselves. In an interdisciplinary collaboration architects, artists, composers and computer vision specialists developed an environment where participants can enter, move around, and - through interaction with each other - experience different fragments of a spacesensitive soundscape and its visual representation (sonification). The space consists of a kinetic architectural construction of projections screen hanging over participants to allow free movement within the room. The screen surfaces and shapes are designed to effect participants' vision. Each screen is movable, reacting to the participants' movement, and aligned with the visual projections. The system uses a high-end tracking system in order to reliably track multiple participants. The closeness of the participants to one another determines the size of their projection-scope. When two individuals meet both their according projections and acoustic tracks are melted together and only one remains, when they part both are separated into their own visualized soundscape again. The technical background consists of four components: (1) The tracking system on an infrared basis in order to exclude distractions from the projections and detect only people in the open space, (2) The “information cloud” above: the visual surface, a combination of light-weight movable elements, serving as projection screens and allowing participants to move freely in the room, (3) the soundscape, generating acoustic "relational feedback" of the movements in the space, and lastly (4) the immersive environment, the visualization itself, i.e. the implementation and integration of all included components.

关键词： Visualization Tracking Aerospace electronics Humans Data visualization computers Acoustics

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Access control for a Smart Grid SOA

Access control for a Smart Grid SOA

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International Conference for Internet Technology and Secured Transactions (ICITST)

作者： Markus Jung Thomas Hofer Susen Döbelt Georg Kienesberger Florian Judex Wolfgang Kastner Institute of Computer Aided Automation Vienna University of Technology Austria Center for Usability Research and Engineering Austria Institute of Computer Technology Vienna University of Technology Austria Austrian Institute of Technology GmbH Austria

In the future Smart Grid numerous stakeholders within the electric power grid need to exchange information in order to realize applications like customer energy feedback, billing and invoicing of variable tariffs, demand side management and efficient charging of electric vehicles. Using a Service-oriented Architecture (SOA) based on Web services promises a convenient way to provide a data infrastructure capable to realize the required interactions in a flexible way. A main concern in such an architecture is how access to data can be controlled in order to prevent security or privacy violations. Access control depends strongly on authentication and authorization mechanisms. Therefore this paper contributes i) a SOA for the Smart Grid and ii) an access control mechanism that is taken into consideration from the early beginning of the system design. Furthermore, a proof of concept implementation and a scalability analysis are used to investigate the requirements on computational resources in a large scale deployment.

关键词： Simple object access protocol Smart grids Access control Semiconductor optical amplifiers

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Analysis of feature and welding consideration for metal bellows

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Key engineering Materials 2011年 486卷 225-228页

作者： Wen, Hungjiun Lo, Yulin Chang, Kuo-Hwa Wen, Fuh-Liang Department of Industrial and System Engineering Chung Yuan Christian University Chungli Taoyuan County 32023 Taiwan Department of Mechanical and Computer-Aided Engineering Graduate Institute of Automation and Mechatronics St. John's University Tamsui New Taipei City 25135 Taiwan

The design and process of diaphragms for a welded bellow was studied in this paper, which is a flexible component in a piping system or vacuum equipment. Due to a lot of interactive effects on each procedure in the manufacturing for a welded bellow, furthermore the commercial FEM software ANSYS was used to construct a 3-dimension model for the displacement and modal analysis of bellows in which extensions and natural frequencies as well as mode shapes could be observed. The mechanical feature should be considered at the practical applications, i.e., to avoid the occurrence of resonant phenomena corresponding to pump operations and fluid delivery in a piping system. For the purpose of modeling validation, the axial tensile testing machine implemented the extension experiment for welded bellows. According to the results of simulation and experiment, the difference among them could be easily detected for the feature investigation for a design-oriented systemic analysis on the development of welded bellows. © (2011) Trans Tech Publications, Switzerland.

关键词： Tensile testing

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Comparison of reconstruction and example-based super-resolution

Comparison of reconstruction and example-based super-resolut...

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2011 7th International Conference on Emerging Technologies, ICET 2011

作者： Khan, Rehanullah Sablatnig, Robert Bais, Abdul Khawaja, Yahya M. Institute of Computer Aided Automation Vienna University of Technology Vienna Austria Sarhad University of Science and Information Technology Peshawar Pakistan University of Engineering and Technology Peshawar Pakistan

ISBN: (纸本)9781457707698

By comparing two classes of Super-Resolution (SR) namely Example-Based Super-Resolution (EBSR) and Reconstruction-Based Super-Resolution (RBSR), we investigate two points: Firstly, which SR technique EBSR or RBSR will produce SR image that preserves Structure Similarity (SSIM) to the original image? Secondly, which SR technique will produce SR image that is more appealing to human eyes? For resultant SR image, EBSR predicts the relation between high and low frequencies in an image, whereas RBSR algorithms rely on a sequence of frames. From the experimental results on test images, we find that compared to RBSR, EBSR preserves the structure of the original image. Knowing this capability is important for detection and recognition systems. In terms of visual appearance, RBSR is preferred except when there are large motions in consecutive frames. Moreover, the aliasing artifacts cannot be removed by EBSR algorithms. © 2011 IEEE.

关键词： Optical resolving power

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System System configuration and evaluation for optical sled drive using constraint-tuning ultrasonic actuator

System System configuration and evaluation for optical sled ...

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2011 International Conference on Applied Mechanics and Manufacturing Technology, AMMT'11

作者： Lai, Ming-Hung Wen, Fuh-Liang Shen, Yu-Lin Ouyang, Minsun Department of Engineering and System Science National Tsing-Hua University Hsinchu 30043 Taiwan Department of Mechanical and Computer-Aided Engineering Graduate Institute of Automation and Mechatronics St.John's University Tamsui New Taipei City 25135 Taiwan Department of Mechanical Engineering University of New Mexico Albuquerque NM 87131 United States

ISBN: (纸本)9783037852309

Through the estimated method for constraint-tuning modified-mode (CTMM), an innovative thin-disc piezoelectric ultrasonic actuator is used to drive an optical sled in this study. With four screws positioned on the thin-disc actuator at the angle distribution of 0°, 90°, 180°, and 320°, both modified modes of ((1, 2))C and ((1, 1))S in vibration provide an approximate equilibrium force to push an optical sled in bilateral movement. The innovative ultrasonic actuator has the vibrator's compact and thinner structure, a thickness of 3 millimeters, without a gearbox rather than a conventional DC sled motor. Using contact friction to drive an optical sled with quick tracking in bilateral motion, experimental results demonstrate obtaining the desired function by a proposed single-phase, bi-frequency LC resonant driving circuit as well as remaining the original sled controller. The general specification of linear speed achieves 200-300 mm/s at less power dissipation for pushing the CD652A BenQ sled drive with 1.0 N output force and 20%-33% efficiency. © (2011) Trans Tech Publications.

关键词： Tuning

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